fix config for TURN
added an IOS image fix library
added support for qrcode scanner
Merge pull request #295 from maraoz/add/stun-turn-config2

fix config for TURN
fix link + decrypt password
rm try catch
Merge pull request #309 from matiu/bug/ux10

fix link + decrypt password
move passphrase config
modify template
fixed address validation
Merge pull request #303 from colkito/feature/qr-scanner-support

Feature/qr scanner support
Merge pull request #312 from matiu/feature/ux11

Feature/ux11